The pressure gage reading is proportional to the gage pressure at the bottom of the tank (See figure). Some water has found its way into the tank and has settled at the bottom of the tank to a depth of 3 cm as shown. The tank is 32 cm deep. How many cm of air does the tank contain when the gage reads full? Specific gravity of gasoline is 0.72. You can neglect the density of air. Vent n Air 32 cm Gasoline Water 13 cm